Micarriage at 6wks. Devastated!

It started off as light bleeding, like spotting on the 3 June, which made me think I was getting my period after 3days it was still spotting so I decided to take a pregnancy test just to see! Named my little miracle i found out i was then on saturday very light red blood went to bed early seemed all fine,woke up yesterday and felt a little cramping but nothing like my first time i experienced having a miscarriage by 5pm that afternoon i was what felt like giving birth of sorts seeing huge amount of clots or what could also have been my baby. Feels like I find out and then I miscarry. I had a dream I was pregnant and then the night before I miscarried I had a dream about that too. Going into hospital today for ultrasound to make sure my hcg levels r going down as they where 6000 still last night and an ultrasound for full check to be sure its complete not imcomplete. My heart just keeps breaking. I cant think straight, and all I can do is cry. Having pcos doctors tell me at least I have been able to conceive but it doesnt help the loss in the end.